Russia is reported to be moving heavy military equipment toward its border with North Korea amid mounting fears of a military clash between Pyongyang and the United States.

Local media in Russia's Far East say residents have witnessed large military convoys traveling by train and road toward the North Korean border since the weekend.

A video carried on local news site DVHab.ru shows a train carrying heavy military equipment, including Tor surface-to-air missile systems, traveling through Khabarovsk purportedly in the direction of Vladivostok, which is 160 kilometers from the border.

“This is the third train of equipment we’ve seen since this morning,” a man can be heard saying in Russian. The website says local residents are in a "panic" about the possibility of fallout from a nuclear bomb reaching Russia.